You searched for: Chromatography Standards

Frequently used for calibration, the chromatography standards have a known concentration to test separating equipment for performance faults. Analytical equipment error would impact the dependability of retention time, purity, molecular weight, and compound identification conclusions. Improving data quality, the substances allow personnel to plot analyte signal ratios and obtain concentrations from a calibration curve. Chromatography standards verify instruments are suitable for intended ion exchange, gel filtration, and hydrophobic interaction procedures.

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VWR® PESTINORM®, Fatty Acid Methyl Esters (FAME) Standards for GC

Supplier: VWR Chemicals

Avantor offers an extensive range of FAME standards as Certified Reference Materials under the well-known PESTINORM® brand.

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Reference substances for GC analysis, Supelco®

Supplier: Merck

Reference substances can be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis. They serve also for the characterisation of GC column properties.

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Nucleosides test mix, analytical standard, Supelco®

Supplier: Merck

HPLC Standard, Nucleosides Test Mix, Supelco®, in 1% sodium formate (varied conc.), Analytical standard, Pk Info: ampule of 1 mL

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Poly(dimethylsiloxane) analytical standard, for GPC

Supplier: Merck

Poly(dimethylsiloxane) [PDMS] is a polymer. It is a stable silicone rubber. It has been used as ion selective membrane for ion-sensitive field-effect transistors, as spring material in accelerometers, elastomer on a tactile sensor and as flexible encapsulation material in decouple sensors.

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VWR® PESTINORM®, 2-Propanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Methanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Ethyl Acetate, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Gas Chromatography (GC) Certified Reference Material

Supplier: VWR Chemicals

Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.

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Programmed test mix, in dichloromethane (varied conc.), certified reference material, Supelco®

Supplier: Merck

This test mix is based on the comprehensive mix developed by Grob (Grob, et al., J. Chromatogr. 156 (1978) p. 1)

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VWR® PESTINORM®, N,N-Dimethylacetamide, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, iso-Butyl Methyl Ketone, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Dimethylsulphoxide (DMSO), Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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Nonpolar column test mix, certified reference material, Supelco®

Supplier: Merck

Nonpolar Column Test Mix, TraceCERT®, Supelco®, 500 mug/mL in dichloromethane, Certified reference material, Pk Info: ampule of 2 mL

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MALDI validation set polystyrene Mp ~700 - 70000, certified reference material, Supelco®

Supplier: Merck

MALDI Standards are suitable for the validation and comparison of MALDI-ToF instruments. Certificates provide MALDI spectra including Mw, Mn and Mp values of select narrow polymers, which differ in molar mass.

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VWR® PESTINORM®, Di-isopropyl Ether, Stabilised, Secondary Reference Standard for GC

Supplier: VWR Chemicals

Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 40 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.

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Polystyrene (low molecular) Standard ReadyCal Set M(p) 250-70000 for GPC

Supplier: Merck

Set contains 12 different polystyrene standards with Mp ~266, Mp ~374, Mp~1100, Mp~1920, Mp~2950, Mp ~4870, Mp ~7200, Mp~10400, Mp ~15700, Mp ~19600, Mp ~34800, Mp ~67500; always 4 standards are lyophilised in a 1,5ml vial (yellow, blue or black); for 1 complete calibration use one of each of the yellow, blue and black vials; 1 set contains 30 vials for 10 complete calibrations.

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VWR® PESTINORM®, 1,2-Dichloroethane, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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HPLC gradient system diagnostics mix, in methanol: water (3:2) (varied concentration), certified reference material, Supelco®

Supplier: Merck

This formulation is designed for evaluating how reliably a chromatographic system is providing such fundamentally important parameters as flow rate, proportioning, and mixing.

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VWR® PESTINORM®, Ethanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, 1-Propanol, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Toluene, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, n-Heptane, secondary reference standard for GC, PESTINORM®

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, n-Hexane, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, 2,2,4-Trimethylpentane, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, tert-Butyl Methyl Ether, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Tetrahydrofuran (THF), Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, 1,4-Dioxane, Stabilised, Secondary Reference Standard for GC

Supplier: VWR Chemicals

Stabilised with BHT (2,6-Di-tert-butyl-p-cresol, 2,6-Di-tert-butyl-4-methylphenol, Ionol) 20 ppm. A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR® PESTINORM®, Cyclohexane, Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, N,N-Dimethylformamide, secondary reference standard for GC, PESTINORM®

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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Standards for saturated/monounsaturated fatty acids, LC-MS mixture

Supplier: Cayman Chemical

Saturated or monounsaturated fatty acid LC-MS mixture contains various saturated or unsaturated fatty acids. The mixture is supplied in an amber ampule in which the headspace has been purged with argon to prevent lipid oxidation. This product has been designed for direct use in LC-MS applications.